Results 31 to 40 of about 473,506 (276)

Air-Surface exchange of elemental mercury in uncontaminated grasslands : determination of fluxes and identification of forcing factors with micrometeorological methods and controlled laboratory studies [PDF]

open access: yes, 2008
The burning of fossil fuels, incineration of waste, smelting of metals and other industrial processes and applications have been adding considerable amounts of mercury to the atmosphere.
Fritsche, Johannes
core   +1 more source

Gaseous elemental mercury data during the summertime MOSAiC expedition

open access: yes, 2023
This dataset includes hourly gaseous elemental mercury (GEM) concentrations that measured during the Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) expedition, and the corresponding meteorological, date and location data.
Xie, Z (via Mendeley Data)   +1 more
core   +1 more source

Programmable Thermal Dissociation of Reactive Gaseous Mercury, a Potential Approach to Chemical Speciation: Results from a Field Study§

open access: yesAtmosphere, 2014
Programmable Thermal Dissociation (PTD) has been used to investigate the chemical speciation of Reactive Gaseous Mercury (RGM, Hg2+). RGM was collected on denuders and analyzed using PTD.
Cheryl Tatum Ernest   +4 more
doaj   +1 more source

Evaluating the performance of oxidized Hg reference gas generators in the range ng m−3 to μg m−3 by improved coupling with ICP-MS

open access: yesAtmospheric Environment: X, 2020
We demonstrate a novel way to introduce a so-called Hg reference gas, produced by a gas generator, into an elemental detector, such as ICP-MS, and to directly measure gaseous oxidized mercury (GOM as HgCl2) at a wide range of concentrations, covering 4 ...
Panayot Petrov   +3 more
doaj   +1 more source

Ship-Based Measurements of Atmospheric Mercury Concentrations over the Baltic Sea

open access: yesAtmosphere, 2018
Mercury is a toxic pollutant emitted from both natural sources and through human activities. A global interest in atmospheric mercury has risen ever since the discovery of the Minamata disease in 1956.
Hanna Hoglind   +2 more
doaj   +1 more source

Calibration Approach for Gaseous Oxidized Mercury Based on Nonthermal Plasma Oxidation of Elemental Mercury

open access: yesAnalytical Chemistry, 2022
Atmospheric mercury measurements carried out in the recent decades have been a subject of bias largely due to insufficient consideration of metrological traceability and associated measurement uncertainty, which are ultimately needed for the demonstration of comparability of the measurement results.
Gačnik, Jan   +8 more
openaire   +3 more sources

Dynamics of snow-air mercury exchange at Ny Ålesund during springtime 2011

open access: yesE3S Web of Conferences, 2013
Continuous time series of flux measurements were carried out in Ny Ålesund, Spitsbergen, during a springtime field campaign from 31 of March to 3 of May, 2011.
Manca G.   +5 more
doaj   +1 more source

Oxidation of elemental Hg in anthropogenic and marine airmasses [PDF]

open access: yesAtmospheric Chemistry and Physics, 2013
Mercury (Hg) is a neurotoxin that bioaccumulates in the food chain. Mercury is emitted to the atmosphere primarily in its elemental form, which has a long lifetime allowing global transport.
H. Timonen, J. L. Ambrose, D. A. Jaffe
doaj   +1 more source

The influence of ozone on atmospheric emissions of gaseous elemental mercury and reactive gaseous mercury from substrates

open access: yesAtmospheric Environment, 2005
Abstract Experiments were performed to investigate the effect of ozone (O 3 ) on mercury (Hg) emission from a variety of Hg-bearing substrates. Substrates with Hg(II) as the dominant Hg phase exhibited a 1.7 to 51-fold increase in elemental Hg (Hg o ) flux and a 1.3 to 8.6-fold increase in reactive gaseous mercury (RGM) flux in the presence of O 3 ...
Engle, Mark A.   +4 more
openaire   +3 more sources

Comparison of two measurement methods of dissolved gaseous mercury concentrations and estimations of supersaturation grade and mercury fluxes during a research campaign at the Mediterranean Sea

open access: yesE3S Web of Conferences, 2013
Dissolved gaseous mercury (DGM) concentrations and gaseous elemental mercury (GEM) concentrations were measured during an oceanographic campaign in the Mediterranean Sea.
Nerentorp M.   +2 more
doaj   +1 more source

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